Results 251 to 260 of about 769,162 (329)

Water-Augmented Turbofan Engine

Journal of Hydronautics, 1968
This paper describes a novel lightweight propulsion scheme for use in high-speed ships in which large amounts of water are injected into the fan discharge duct of an aircraft- type turbofan engine. Theoretical design and off-design performance for this water-augmented turbofan engine show that dry thrust theoretically can be augmented 380% at 25 knots ...
W. RICHARD DAVISON, THOMAS J. SADOWSKI
openaire   +1 more source

Thermodynamic Analysis of Turbofan Engine

Volume 1: Turbo Expo 2005, 2005
The present work deals with a detailed parametric thermodynamic analysis of all the possible configurations of turbofan engine (two and three spool with or without mixer and/ afterburner) employing transpiration cooling technique for turbine blade cooling.
R. Yadav, Chandrakant B. Jugseniya, Abhay A. Pashilkar   +2 more
openaire   +1 more source

A 3-D Attention-Enhanced Hybrid Neural Network for Turbofan Engine Remaining Life Prediction Using CNN and BiLSTM Models

IEEE Sensors Journal
As the most popular power source equipment in commercial aviation, turbofan engines face problems such as difficulties in data acquisition and unbalanced datasets.
Keshun You, Guangqi Qiu, Yingkui Gu
semanticscholar   +1 more source

Design and Analysis of an Aircraft Thermal Management System Linked to a Low Bypass Ratio Turbofan Engine

Journal of Engineering For Gas Turbines and Power, 2021
The design of an aircraft thermal management system (TMS) that is capable of rejecting heat loads into the bypass stream of a typical low-bypass ratio turbofan engine, or a ram-air stream, is investigated.
R. Clark, Mingxuan Shi, Jonathan C. Gladin, D. Mavris   +3 more
semanticscholar   +1 more source

Fan Noise from Turbofan Engines

Journal of Aircraft, 1976
This paper reviews turbomachinery noise from turbofan engines as typified by fan noise. The mechanisms and theories of fan noise are reviewed and concepts for its reduction, including acoustic suppression, are discussed. Correlations of the overall noise data from several full-scale fans tested at NASA Lewis Research Center are presented as indicative ...
Charles E. Feiler, E. William Conrad
openaire   +1 more source

Distributed Control of Turbofan Engines

45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2009
Abstract : The purpose of this paper is to develop control theoretic concepts for distributed control of gas turbine engines, and develop a dynamic engine model incorporating distributed components in compressor dynamics, engine cycles, and engine control.
Mehrdad Pakmehr, Marion Mounier, Nathan Fitzgerald, George Kiwada, James Paduano, Eric Feron, Alireza Behbahani   +6 more
openaire   +1 more source

Computational Mechanics for Turbofan Engine Blade Containment Testing: Fan Case Design and Blade Impact Dynamics by Finite Element Simulations

Aerospace
The harsh environment during airplane take-off and flights with complex operating conditions require a high dynamic and impact resistance capability of airplane engines.
V. Tuninetti, H. Sepúlveda
semanticscholar   +1 more source

Parametric Study on Exergy and NOx Metrics of Turbofan Engine Under Different Design Variables

Journal of energy resources technology, 2021
Examining the effects of design variables on performance and emission parameters for gas turbine engines is of high importance. In this study, the effects of by-pass ratio (BPR) and turbine inlet temperature (TIT) of turbofan engine on energy, exergy ...
H. Aygun, M. Sheikhi, Mehmet Kirmizi
semanticscholar   +1 more source

Compound cycle turbofan engine

19th Joint Propulsion Conference, 1983
The paper discusses the design and development of critical technologies for a "near-adiabatic" compound cycle turbofan engine (CCTE). The concept involves replacing the combustor of a conventional turbofan engine with a highly supercharged, high-speed, two-stroke, direct-injected diesel core. Primary emphasis was on reducing specific fuel consumption t
openaire   +1 more source

Acoustic Thrust Estimation on Turbofan Engines

Journal of Propulsion and Power, 2023
An acoustic time of flight sensor is operated across a turbofan exhaust plume and is calibrated to provide nozzle thrust in a ground-test cell. Such a sensor could potentially be used to monitor any degradation of engine performance in an on-wing application. Validation of the technique was performed on an AE3007-A1E turbofan engine. Using a pneumatic
John Gillespie, Wing Ng, Todd Lowe, Loren Crook, Victor L. Oechsle   +4 more
openaire   +1 more source